(FALCON_XMAC_REGBANK + ((mac_reg) * FALCON_XMAC_REG_SIZE))
void falcon_xmac_writel(struct efx_nic *efx,
- efx_dword_t *value, unsigned int mac_reg)
+ efx_dword_t *value, unsigned int mac_reg)
{
efx_oword_t temp;
udelay(10);
}
+ /* This often fails when DSP is disabled, ignore it */
+ if (sfe4001_phy_flash_cfg != 0)
+ return 0;
+
EFX_ERR(efx, "timed out waiting for XMAC core reset\n");
return -ETIMEDOUT;
}
/* The ISR latches, so clear it and re-read */
falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
falcon_xmac_readl(efx, ®, XM_MGT_INT_REG_MAC_B0);
-
+
if (EFX_DWORD_FIELD(reg, XM_LCLFLT) ||
EFX_DWORD_FIELD(reg, XM_RMTFLT)) {
EFX_INFO(efx, "MGT_INT: "EFX_DWORD_FMT"\n", EFX_DWORD_VAL(reg));
{
efx_dword_t reg;
- if (FALCON_REV(efx) < FALCON_REV_B0)
+ if ((FALCON_REV(efx) < FALCON_REV_B0) || LOOPBACK_INTERNAL(efx))
return;
/* Flush the ISR */
efx_dword_t reg;
int align_done, sync_status, link_ok = 0;
+ if (LOOPBACK_INTERNAL(efx))
+ return 1;
+
/* Read link status */
falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
falcon_xmac_writel(efx, ®, XM_ADR_HI_REG_MAC);
}
+static void falcon_reconfigure_xgxs_core(struct efx_nic *efx)
+{
+ efx_dword_t reg;
+ int xgxs_loopback = (efx->loopback_mode == LOOPBACK_XGXS) ? 1 : 0;
+ int xaui_loopback = (efx->loopback_mode == LOOPBACK_XAUI) ? 1 : 0;
+ int xgmii_loopback =
+ (efx->loopback_mode == LOOPBACK_XGMII) ? 1 : 0;
+
+ /* XGXS block is flaky and will need to be reset if moving
+ * into our out of XGMII, XGXS or XAUI loopbacks. */
+ if (EFX_WORKAROUND_5147(efx)) {
+ int old_xgmii_loopback, old_xgxs_loopback, old_xaui_loopback;
+ int reset_xgxs;
+
+ falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
+ old_xgxs_loopback = EFX_DWORD_FIELD(reg, XX_XGXS_LB_EN);
+ old_xgmii_loopback = EFX_DWORD_FIELD(reg, XX_XGMII_LB_EN);
+
+ falcon_xmac_readl(efx, ®, XX_SD_CTL_REG_MAC);
+ old_xaui_loopback = EFX_DWORD_FIELD(reg, XX_LPBKA);
+
+ /* The PHY driver may have turned XAUI off */
+ reset_xgxs = ((xgxs_loopback != old_xgxs_loopback) ||
+ (xaui_loopback != old_xaui_loopback) ||
+ (xgmii_loopback != old_xgmii_loopback));
+ if (reset_xgxs) {
+ falcon_xmac_readl(efx, ®, XX_PWR_RST_REG_MAC);
+ EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 1);
+ EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 1);
+ falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ udelay(1);
+ EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSTX_EN, 0);
+ EFX_SET_DWORD_FIELD(reg, XX_RSTXGXSRX_EN, 0);
+ falcon_xmac_writel(efx, ®, XX_PWR_RST_REG_MAC);
+ udelay(1);
+ }
+ }
+
+ falcon_xmac_readl(efx, ®, XX_CORE_STAT_REG_MAC);
+ EFX_SET_DWORD_FIELD(reg, XX_FORCE_SIG,
+ (xgxs_loopback || xaui_loopback) ?
+ XX_FORCE_SIG_DECODE_FORCED : 0);
+ EFX_SET_DWORD_FIELD(reg, XX_XGXS_LB_EN, xgxs_loopback);
+ EFX_SET_DWORD_FIELD(reg, XX_XGMII_LB_EN, xgmii_loopback);
+ falcon_xmac_writel(efx, ®, XX_CORE_STAT_REG_MAC);
+
+ falcon_xmac_readl(efx, ®, XX_SD_CTL_REG_MAC);
+ EFX_SET_DWORD_FIELD(reg, XX_LPBKD, xaui_loopback);
+ EFX_SET_DWORD_FIELD(reg, XX_LPBKC, xaui_loopback);
+ EFX_SET_DWORD_FIELD(reg, XX_LPBKB, xaui_loopback);
+ EFX_SET_DWORD_FIELD(reg, XX_LPBKA, xaui_loopback);
+ falcon_xmac_writel(efx, ®, XX_SD_CTL_REG_MAC);
+}
+
+
/* Try and bring the Falcon side of the Falcon-Phy XAUI link fails
* to come back up. Bash it until it comes back up */
static int falcon_check_xaui_link_up(struct efx_nic *efx)
tries = EFX_WORKAROUND_5147(efx) ? 5 : 1;
max_tries = tries;
- if (efx->phy_type == PHY_TYPE_NONE)
+ if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
+ (efx->phy_type == PHY_TYPE_NONE))
return 0;
while (tries) {
EFX_LOG(efx, "%s Clobbering XAUI (%d tries left).\n",
__func__, tries);
- (void) falcon_reset_xaui(efx);
+ falcon_reset_xaui(efx);
udelay(200);
tries--;
}
falcon_mask_status_intr(efx, 0);
falcon_deconfigure_mac_wrapper(efx);
+
+ efx->tx_disabled = LOOPBACK_INTERNAL(efx);
efx->phy_op->reconfigure(efx);
+
+ falcon_reconfigure_xgxs_core(efx);
falcon_reconfigure_xmac_core(efx);
+
falcon_reconfigure_mac_wrapper(efx);
/* Ensure XAUI link is up */
(mac_stats->rx_bytes - mac_stats->rx_good_bytes);
}
-#define EFX_XAUI_RETRAIN_MAX 8
-
int falcon_check_xmac(struct efx_nic *efx)
{
unsigned xaui_link_ok;
int rc;
+ if ((efx->loopback_mode == LOOPBACK_NETWORK) ||
+ (efx->phy_type == PHY_TYPE_NONE))
+ return 0;
+
falcon_mask_status_intr(efx, 0);
xaui_link_ok = falcon_xaui_link_ok(efx);
if (EFX_WORKAROUND_5147(efx) && !xaui_link_ok)
- (void) falcon_reset_xaui(efx);
+ falcon_reset_xaui(efx);
/* Call the PHY check_hw routine */
rc = efx->phy_op->check_hw(efx);